diff options
Diffstat (limited to 'hurd/hurdsock.c')
-rw-r--r-- | hurd/hurdsock.c | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/hurd/hurdsock.c b/hurd/hurdsock.c deleted file mode 100644 index de4158def8..0000000000 --- a/hurd/hurdsock.c +++ /dev/null @@ -1,120 +0,0 @@ -/* _hurd_socket_server - Find the server for a socket domain. - Copyright (C) 1991-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <hurd.h> -#include <sys/socket.h> -#include <stdlib.h> -#include <string.h> -#include <hurd/paths.h> -#include <stdio.h> -#include <_itoa.h> -#include <cthreads.h> /* For `struct mutex'. */ -#include "hurdmalloc.h" /* XXX */ - -static struct mutex lock; - -static file_t *servers; -static int max_domain = -1; - -/* Return a port to the socket server for DOMAIN. - Socket servers translate nodes in the directory _SERVERS_SOCKET - (canonically /servers/socket). These naming point nodes are named - by the simplest decimal representation of the socket domain number, - for example "/servers/socket/3". - - Socket servers are assumed not to change very often. - The library keeps all the server socket ports it has ever looked up, - and does not look them up in /servers/socket more than once. */ - -socket_t -_hurd_socket_server (int domain, int dead) -{ - socket_t server; - - if (domain < 0) - { - errno = EAFNOSUPPORT; - return MACH_PORT_NULL; - } - - HURD_CRITICAL_BEGIN; - __mutex_lock (&lock); - - if (domain > max_domain) - { - error_t save = errno; - file_t *new = realloc (servers, (domain + 1) * sizeof (file_t)); - if (new != NULL) - { - do - new[++max_domain] = MACH_PORT_NULL; - while (max_domain < domain); - servers = new; - } - else - /* No space to cache the port; we will just fetch it anew below. */ - errno = save; - } - - if (dead && domain <= max_domain) - { - /* The user says the port we returned earlier (now in SERVERS[DOMAIN]) - was dead. Clear the cache and fetch a new one below. */ - __mach_port_deallocate (__mach_task_self (), servers[domain]); - servers[domain] = MACH_PORT_NULL; - } - - if (domain > max_domain || servers[domain] == MACH_PORT_NULL) - { - char name[sizeof (_SERVERS_SOCKET) + 100]; - char *np = &name[sizeof (name)]; - *--np = '\0'; - np = _itoa (domain, np, 10, 0); - *--np = '/'; - np -= sizeof (_SERVERS_SOCKET) - 1; - memcpy (np, _SERVERS_SOCKET, sizeof (_SERVERS_SOCKET) - 1); - server = __file_name_lookup (np, 0, 0); - if (domain <= max_domain) - servers[domain] = server; - } - else - server = servers[domain]; - - if (server == MACH_PORT_NULL && errno == ENOENT) - /* If the server node is absent, we don't support that protocol. */ - errno = EAFNOSUPPORT; - - __mutex_unlock (&lock); - HURD_CRITICAL_END; - - return server; -} - -static void -init (void) -{ - int i; - - __mutex_init (&lock); - - for (i = 0; i < max_domain; ++i) - servers[i] = MACH_PORT_NULL; - - (void) &init; /* Avoid "defined but not used" warning. */ -} -text_set_element (_hurd_preinit_hook, init); |